This is the first publication, in which a globally convergent numerical
method, the so-called convexification, is constructed for a Coefficient
Inverse Problem (CIP) for the steady state so-called Riemannian Radiative
Transfer Equation (RRTE). In the case of inverse problems for the steady
state Radiative Transfer Equation (RTE), numerical methods were mostly
developed for inverse source problems [1]}, [2]}, [3]}, [4]}, which are
linear ones. On the other hand, CIPs are nonlinear. We refer to the recent
publication [5]} for the convexification numerical method for a CIP
for RTE. The authors are unaware about other numerical methods for CIPs for
RTE and RRTE.
